HK1058226A1 - High-strength bolt excellent in delayed fracture resistance characteristics and its steel product - Google Patents

High-strength bolt excellent in delayed fracture resistance characteristics and its steel product

Info

Publication number
HK1058226A1
HK1058226A1 HK04100951A HK04100951A HK1058226A1 HK 1058226 A1 HK1058226 A1 HK 1058226A1 HK 04100951 A HK04100951 A HK 04100951A HK 04100951 A HK04100951 A HK 04100951A HK 1058226 A1 HK1058226 A1 HK 1058226A1
Authority
HK
Hong Kong
Prior art keywords
bolt
tensile strength
delayed fracture
strength bolt
steel material
Prior art date
Application number
HK04100951A
Inventor
Nobuyoshi Uno
Hideo Kanisawa
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of HK1058226A1 publication Critical patent/HK1058226A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Dowels (AREA)
  • Forging (AREA)

Abstract

The present invention provides a high strength bolt superior in delayed fracture resistant property having a bolt tensile strength of 1200 N/mm<2> or more and a steel material for the same. <??>A high strength bolt comprised of a head portion and shaft portion formed by a steel material, wherein the relation between a bolt tensile strength TS (N/mm<2>) and tempering temperature T ( DEG C) satisfies the following expression (1), the relation between the bolt tensile strength TS (N/mm<2>) and the carbon equivalent Ceq (%) calculated from the chemical composition of the steel material used for the high strength bolt satisfies the following expression (2), and the tensile strength of the bolt is refined to a range of 1200 N/mm<2> to 1600 N/mm<2> by quenching and tempering: <DF NUM="(1)">TS≤.1T+850 </DF> <DF NUM="(2)">TS≤550Ceq+1000 </DF> where, <DF>Ceq=C+(Mn/6)+(Si/24)+(Ni/40) +(Cr/5)+(Mo/4)+(V/14) </DF> <IMAGE>
HK04100951A 2001-03-22 2004-02-12 High-strength bolt excellent in delayed fracture resistance characteristics and its steel product HK1058226A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001082325A JP4142853B2 (en) 2001-03-22 2001-03-22 High strength bolt with excellent delayed fracture resistance
PCT/JP2002/002796 WO2002077467A1 (en) 2001-03-22 2002-03-22 High-strength bolt excellent in delayed fracture resistance characteristics and its steel product

Publications (1)

Publication Number Publication Date
HK1058226A1 true HK1058226A1 (en) 2004-05-07

Family

ID=18938284

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04100951A HK1058226A1 (en) 2001-03-22 2004-02-12 High-strength bolt excellent in delayed fracture resistance characteristics and its steel product

Country Status (10)

Country Link
US (1) US7070664B2 (en)
EP (1) EP1371863B1 (en)
JP (1) JP4142853B2 (en)
KR (1) KR100543251B1 (en)
CN (1) CN1236077C (en)
AT (1) ATE356300T1 (en)
DE (1) DE60218640D1 (en)
HK (1) HK1058226A1 (en)
TW (1) TW550349B (en)
WO (1) WO2002077467A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4555749B2 (en) * 2004-10-08 2010-10-06 新日本製鐵株式会社 Method for improving delayed fracture resistance of high strength bolts
JP4485424B2 (en) * 2005-07-22 2010-06-23 新日本製鐵株式会社 Manufacturing method of high-strength bolts with excellent delayed fracture resistance
FR2914929B1 (en) * 2007-04-12 2010-10-29 Mittal Steel Gandrange STEEL WITH GOOD HYDROGEN RESISTANCE FOR THE FORMING OF VERY HIGH CHARACTERISTIC MECHANICAL PARTS.
PL2176559T3 (en) * 2007-08-13 2015-04-30 Res Engineering&Manufacturing Inc Thread forming fastener
JP5334769B2 (en) 2009-09-10 2013-11-06 独立行政法人物質・材料研究機構 High strength bolt
JP6017944B2 (en) * 2011-12-09 2016-11-02 国立研究開発法人物質・材料研究機構 High strength bolt and manufacturing method thereof
KR101604938B1 (en) * 2012-01-11 2016-03-18 가부시키가이샤 고베 세이코쇼 Steel for bolts, bolt, and method for producing bolt
CN103088266B (en) * 2012-12-04 2016-05-11 合肥宏杰新材料科技有限公司 The forging method of foundation bolt
CN103088267B (en) * 2012-12-04 2016-05-11 合肥宏杰新材料科技有限公司 The preparation method of Lengthened bolt
CN103088271B (en) * 2012-12-04 2016-05-11 合肥中澜新材料科技有限公司 The preparation method of high-strength corrosion-resisting bolt
CN113383094B (en) 2019-02-08 2023-08-15 日本制铁株式会社 Bolt and steel for bolt
CN110468328B (en) * 2019-08-05 2021-03-23 洛阳双瑞特种装备有限公司 Steel for steel structure bolt
US20230160030A1 (en) * 2021-11-24 2023-05-25 Rinngo Technology Co., Ltd. Method of manufacturing blind rivet

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61130456A (en) 1984-11-29 1986-06-18 Honda Motor Co Ltd High-strength bolt and its production
JP2739713B2 (en) 1987-08-19 1998-04-15 本田技研工業株式会社 High strength bolt
JPH01191762A (en) 1988-01-26 1989-08-01 Sumitomo Metal Ind Ltd Steel for machine structure having excellent delayed fracture resistance
JPH02267243A (en) 1989-04-07 1990-11-01 Nippon Steel Corp High strength bolt steel having excellent delayed fracture characteristics
JP2614659B2 (en) 1989-05-31 1997-05-28 株式会社神戸製鋼所 High strength bolt steel with delayed fracture resistance and cold forgeability
JPH0689768B2 (en) 1989-11-21 1994-11-14 新日本製鐵株式会社 High-strength bolt / nut / washer set
JPH03173745A (en) 1989-11-30 1991-07-29 Aichi Steel Works Ltd High strength bolt steel
JPH0429607A (en) 1990-05-23 1992-01-31 Nippon Steel Corp High-tension bolt excellent in delay breakage resistance characteristic
JPH0757901B2 (en) 1991-07-08 1995-06-21 日本鋼管株式会社 Steel for high-strength bolts with excellent delayed fracture resistance
JPH0570890A (en) 1991-09-11 1993-03-23 Nippon Steel Corp Steel for high strength bolt excellent in delayed fracture resistance
JP3212156B2 (en) 1992-09-08 2001-09-25 光菱電機株式会社 Commutator for rotating electric machine and method of manufacturing the same
JPH07126799A (en) * 1993-11-01 1995-05-16 Kobe Steel Ltd Manufacture of high strength bolt excellent in delayed breakdown resistance
JP3358679B2 (en) * 1994-04-14 2002-12-24 新日本製鐵株式会社 High tension bolt with excellent delayed fracture resistance
JPH08225845A (en) * 1995-02-20 1996-09-03 Daido Steel Co Ltd Production of high strength bolt excellent in delayed fracture resistance
FR2783840B1 (en) * 1998-09-30 2000-11-10 Aubert & Duval Sa STEEL ALLOWING HIGH NITRURATION KINETICS, PROCESS FOR OBTAINING SAME AND PARTS FORMED THEREFROM
JP3718369B2 (en) * 1999-05-13 2005-11-24 新日本製鐵株式会社 Steel for high strength bolt and method for producing high strength bolt
JP4629816B2 (en) * 1999-08-20 2011-02-09 株式会社神戸製鋼所 High strength bolt excellent in delayed fracture resistance and method for producing the same
JP3793391B2 (en) * 2000-04-04 2006-07-05 新日本製鐵株式会社 High strength bolt excellent in delayed fracture resistance with a tensile strength of 1300 MPa or more and method for producing the same

Also Published As

Publication number Publication date
KR20030003754A (en) 2003-01-10
US7070664B2 (en) 2006-07-04
TW550349B (en) 2003-09-01
US20030150529A1 (en) 2003-08-14
JP2002276637A (en) 2002-09-25
JP4142853B2 (en) 2008-09-03
EP1371863A4 (en) 2004-10-20
EP1371863A1 (en) 2003-12-17
CN1236077C (en) 2006-01-11
KR100543251B1 (en) 2006-01-20
ATE356300T1 (en) 2007-03-15
DE60218640D1 (en) 2007-04-19
WO2002077467A1 (en) 2002-10-03
EP1371863B1 (en) 2007-03-07
CN1460156A (en) 2003-12-03

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20210322